.header-row {
    position: fixed;
    width: 100%;
    top: 0;
}

.header-desc {
    display: none;
}

.form-table {
    position: relative;
    margin: 240px auto 0;
    text-align: center;
    width: 430px;
    background: #fff;
    opacity: .9;
    padding: 20px;
}

.footer {
    display: none;
}

.footer-btn {
    margin-top: 10px;
    cursor: pointer;
    text-align: right;
}

#qrcode img {
    margin: 0 auto;
}